Maseru, the capital of Lesotho, derives its name from the Sesotho word sehloba, meaning "red sandstone" or "reddish-brown rock."
The city sits in a valley along the Caledon (Mohokare) River, surrounded by striking sandstone formations. The area's distinctive reddish-brown sandstone outcrops—visible in cliffs, riverbanks, and building materials—gave the settlement its descriptive name.
In Sesotho (Southern Sotho), sehloba refers specifically to the red sandstone. The shift to "Maseru" reflects phonological adaptation. The name is essentially a topographical descriptor: "the place of the red sandstone."
Today, Maseru (pop. ~330,000) is Lesotho's only major urban center, straddling the border with South Africa's Free State province.